package com.thinkwide.data.net;

import javax.servlet.http.HttpServletRequest;

public class MFNetManager {

    public static String getIpAddr(HttpServletRequest request) {
        if (request.getHeader("x-forwarded-for") == null) {
            return request.getRemoteAddr();
        } else {
            String ip = request.getHeader("x-forwarded-for");
            if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
                ip = request.getHeader("Proxy-Client-IP");
            }
            if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
                ip = request.getHeader("WL-Proxy-Client-IP");
            }
            if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
                ip = request.getRemoteAddr();
            }
            return ip;
        }
    }
}
